Examining External Dose Rates in Mamuju Regency, Indonesia: A Personal Radiation Dosimetry Approach

Rakotovao Lovanantenaina Omega (Doctoral Program in Nuclear Engineering Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia)
Adi R.A. Abdullah (Doctoral Program in Nuclear Engineering Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia)
Sidik Permana (Doctoral Program in Nuclear Engineering Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia)
Wahyu Srigutomo (Physics Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia)
Alan Maulana (Indonesia’s National Research and Innovation Agency, Jalan Tamansari No. 71, Bandung 40132, Indonesia)
Haryo Seno (Indonesia’s National Research and Innovation Agency, Jalan Tamansari No. 71, Bandung 40132, Indonesia)
Ismail Humolungo (Master Program in Nuclear Science and Engineering Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia.)
Fungki Iqlima Nasyidiyah (Master Program in Nuclear Science and Engineering Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia)
Zulfahmi Zulfahmi (Master Program in Physics of Teaching Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, Indonesia)
Frafti Rejeki (Master Program in Physics of Teaching Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, Indonesia)
Rahmi Elzufiah (Master Program in Physics of Teaching Department, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung, Indonesia)

Journal of Engineering and Technological Sciences
Vol. 55 No. 6 (2023)

This study aimed to quantify the individual external radiation exposure in Mamuju, Indonesia. A SmartRad portable personal dosimeter was utilized for this purpose, and data was collected over a period of 30 days. The findings indicate that the dose rate varies from 0.152 to 4.200 μSv/h and cumulatively ranges from 0.1 to 8.4 μSv/day based on an average measurement duration of 160 minutes. The average dose rate in areas with mineral deposits is 11.02 mSv per year. In contrast, the average effective dose in areas without radioactive mineral deposits is 2.6493 mSv per year. The annual average effective dose for individuals was measured at 6.8347 mSv. These findings imply that personal exposure to radiation among the public in Mamuju exceeds the threshold recommended by the International Commission of Radiological Protection.